User laggingreflex

27 votes

3 answers

6k views

Why is the shape of lightning or an electric spark a zig-zag line?

asked Sep 22, 2014 at 10:33

8 votes

2 answers

2k views

Does light really "travel"?

asked Mar 14, 2013 at 19:23

6 votes

2 answers

573 views

What does string theory say about the metric expansion?

asked Jul 29, 2013 at 6:20

5 votes

1 answer

465 views

Where and how exactly does string theory and Q.E.D. use zeta function regularization?

asked Mar 25, 2014 at 15:46

4 votes

2 answers

265 views

Is such an orbit possible that allows a satellite on Earth and another on Mars to always be in direct line-of-sight?

asked Sep 27, 2013 at 5:37

3 votes

4 answers

4k views

If electromagnetic fields give charge to particles, do photons carry charge?

asked Jul 7, 2012 at 3:39

3 votes

0 answers

90 views

How fast does a black hole appear to decay from infalling observer's perspective? [duplicate]

asked Jun 3, 2015 at 3:57

2 votes

3 answers

9k views

Does an induction cooktop consume as much energy when it's heating something as it does when it isn't? [closed]

asked Jul 11, 2015 at 21:12

2 votes

1 answer

238 views

What happens at the moment black hole is created?

asked Feb 17, 2013 at 8:51

2 votes

1 answer

228 views

An infalling object in a black hole looks "paused" for a far away observer, for how long?

asked Feb 20, 2013 at 16:26

2 votes

2 answers

719 views

How is wavelength actually related to space (/distance)?

asked Aug 16, 2013 at 0:56

2 votes

0 answers

49 views

Could space itself be made out of particles? [duplicate]

asked Jul 21, 2014 at 5:41

1 vote

1 answer

83 views

Can we get a true negative of an image reversing the spectrum?

asked Dec 15, 2014 at 7:50

1 vote

1 answer

1k views

What does white hole look like on a graph paper?

asked May 30, 2015 at 11:50

1 vote

2 answers

107 views

How quick does a regular household bulb lights up after being switched on? [closed]

asked Feb 28, 2016 at 17:52

1 vote

1 answer

355 views

Do all paths leading into a black hole lead directly at the exact center of the singularity? Or could they go very near it and curve back?

asked Jun 9, 2015 at 7:42

0 votes

0 answers

1k views

In the analogy of turning car wheels related to bending of light while entering glass through air, does that imply that two photons are "connected"?

asked Oct 18, 2014 at 7:47

0 votes

2 answers

381 views

Is it possible to change the path of a single photon?

asked Aug 26, 2012 at 2:51

0 votes

1 answer

76 views

Could it be a limit in our measuring the speed of photon, instead of photon having a speed?

asked Jul 30, 2013 at 3:49

0 votes

3 answers

241 views

Is singularity at the exact centre of a black hole?

asked Mar 14, 2013 at 19:32

-1 votes

1 answer

112 views

Which is more efficient cooling? Cooling yourself from cold water from Referigerator or Airconditioning? [closed]

asked Jun 6, 2013 at 2:04

Stack Exchange Network

21 Questions

Why is the shape of lightning or an electric spark a zig-zag line?

Does light really "travel"?

What does string theory say about the metric expansion?

Where and how exactly does string theory and Q.E.D. use zeta function regularization?

Is such an orbit possible that allows a satellite on Earth and another on Mars to always be in direct line-of-sight?

If electromagnetic fields give charge to particles, do photons carry charge?

How fast does a black hole appear to decay from infalling observer's perspective? [duplicate]

Does an induction cooktop consume as much energy when it's heating something as it does when it isn't? [closed]

What happens at the moment black hole is created?

An infalling object in a black hole looks "paused" for a far away observer, for how long?

How is wavelength actually related to space (/distance)?

Could space itself be made out of particles? [duplicate]

Can we get a true negative of an image reversing the spectrum?

What does white hole look like on a graph paper?

How quick does a regular household bulb lights up after being switched on? [closed]

Do all paths leading into a black hole lead directly at the exact center of the singularity? Or could they go very near it and curve back?

In the analogy of turning car wheels related to bending of light while entering glass through air, does that imply that two photons are "connected"?

Is it possible to change the path of a single photon?

Could it be a limit in our measuring the speed of photon, instead of photon having a speed?

Is singularity at the exact centre of a black hole?

Which is more efficient cooling? Cooling yourself from cold water from Referigerator or Airconditioning? [closed]